CN215333762U - Temperature control type hydraulic cooling system - Google Patents
Temperature control type hydraulic cooling system Download PDFInfo
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- CN215333762U CN215333762U CN202120141668.3U CN202120141668U CN215333762U CN 215333762 U CN215333762 U CN 215333762U CN 202120141668 U CN202120141668 U CN 202120141668U CN 215333762 U CN215333762 U CN 215333762U
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Abstract
The utility model relates to a temperature control type hydraulic cooling system, which comprises a temperature control valve and a radiator, wherein a valve inlet of the temperature control valve is connected with an oil inlet pipeline, a first valve outlet and a second valve outlet of the temperature control valve are respectively connected with an oil return pipeline through a first branch oil pipeline and a second branch oil pipeline, the radiator is arranged on the second branch oil pipeline, the temperature control valve comprises a valve sleeve, a thermosensitive material, a spring and a valve core, wherein the thermosensitive material is positioned in an inner cavity of the valve sleeve, the valve core is in sliding fit with the valve sleeve, the thermosensitive material generates thermal expansion and cold contraction deformation under the influence of the temperature change of oil in the inner cavity of the valve sleeve, the thermosensitive material and the spring jointly act to drive the valve core to slide in a reciprocating manner to change the on-off state and the opening degree of the first valve outlet and the second valve outlet, and when the valve core is positioned in a middle working section, the first valve outlet, the second valve outlet and the valve inlet are communicated, the opening degree of the first valve outlet is reduced along with the rise of the temperature of the oil liquid, and the opening degree of the second valve outlet is increased along with the rise of the temperature of the oil liquid. The utility model can carry out spontaneous real-time adjustment on the oil temperature of the hydraulic system.
Description
Technical Field
The utility model relates to a hydraulic cooling system, in particular to a system capable of adjusting temperature in real time.
Background
The cooling system is an indispensable component in a hydraulic system of the engineering machinery, can provide proper oil temperature for the hydraulic system, and ensures long-term and efficient operation of the hydraulic system. At present, cooling systems in hydraulic systems of construction machinery are basically of pressure control type, i.e. a one-way circuit to a radiator or a tank is opened by oil pressure. The cooling system has the defects that the flow of oil in a loop cannot be regulated, and the temperature of the oil in the system cannot be regulated in real time, so that the temperature regulation is not timely and accurate.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a temperature control type hydraulic cooling system which can monitor and adjust the temperature of oil in the system in real time.
The main technical scheme of the utility model is as follows:
a temperature control type hydraulic cooling system comprises a temperature control valve and a radiator, wherein a valve inlet of the temperature control valve is connected with an oil inlet pipeline, a first valve outlet and a second valve outlet of the temperature control valve are respectively connected with an oil return pipeline through a first branch oil way and a second branch oil way, the radiator is arranged on the second branch oil way, the temperature control valve comprises a valve sleeve, a thermosensitive material, a spring and a valve core in sliding fit with the valve sleeve, the thermosensitive material, the spring and the valve core are positioned in an inner cavity of the valve sleeve, two ends of the spring are respectively fixedly connected relative to the valve sleeve and the valve core, the deformation direction of the spring is parallel to the sliding direction of the valve core, the thermosensitive material is influenced by the temperature change of oil in the inner cavity of the valve sleeve to generate thermal contraction deformation, the thermosensitive material and the spring jointly act to drive the valve core to slide in a reciprocating manner to change the on-off states and the opening degrees of the first valve outlet and the second valve outlet, and the valve core has three working sections at the left, the middle and the right, when the valve core is in the middle working section, the first valve outlet is communicated with the second valve outlet and the valve inlet, the opening degree of the first valve outlet is reduced along with the increase of the temperature of oil liquid in the valve sleeve, the opening degree of the second valve outlet is increased along with the increase of the temperature of the oil liquid in the valve sleeve, when the valve core is in the left working section, the second valve outlet is closed, the first valve outlet is communicated with the valve inlet, and when the valve core is in the right working section, the first valve outlet is closed, and the second valve outlet is communicated with the valve inlet.
The temperature control valve can also comprise a sliding block and an ejector pin, the valve sleeve and the sliding block are both hollow shells, the left end of the valve sleeve is closed, the valve inlet is arranged at the right end of the valve sleeve, the first valve outlet and the second valve outlet are arranged on the side wall of the valve sleeve at intervals from left to right, the valve core is a thin shell-shaped part with an outer cylindrical surface attached to the side wall of the valve sleeve, the valve core is provided with a first through hole and a second through hole at intervals from left to right, the first through hole and the second through hole are both communicated with the inner cavity of the valve sleeve, the sliding block is positioned in the inner cavity of the valve sleeve and is fixedly connected with the valve core, the left end of the ejector pin is fixed at the left end of the valve sleeve, the right end of the ejector pin is inserted into the sliding block and is in sliding fit with the sliding block, a seal is arranged between the sliding block and the ejector pin, and the partial space occupied by the thermosensitive material in the closed inner cavity of the sliding block is completely filled with the thermosensitive material, the spring is positioned in the inner cavity of the valve sleeve, the right end of the spring is fixed at the right end of the valve sleeve, the left end of the spring is fixedly connected with the sliding block, the thimble and the spring are positioned in the center of the valve sleeve in the direction vertical to the side wall of the valve sleeve, and when the valve core is positioned in the middle working section, the first through hole is communicated with the first valve outlet, and the second through hole is communicated with the second valve outlet; when the valve core is positioned in the left working section, the valve core seals the second valve outlet, and the first through hole is communicated with the first valve outlet; when the valve core is in the right working section, the valve core seals the first valve outlet, and the second through hole is communicated with the second valve outlet.
The valve barrel can include valve barrel body and big end cover, the valve barrel body is the open tubular structure of left end, big end cover is fixed at the left end of valve barrel body and is sealed the uncovered of valve barrel, the slider can include sliding sleeve and little end cover, the sliding sleeve is the open tubular structure of left end, little end cover is fixed at the left end of sliding sleeve and is sealed the uncovered of sliding sleeve, be equipped with the seal groove on the little end cover, set up the sealing washer in the seal groove, little end cover with sliding fit between the thimble and pass through the sealing washer is sealed.
The valve core is preferably a tubular part, and the sliding block is positioned in a pipe cavity of the valve core.
The valve core can be connected and fixed with the sliding block through a plurality of connecting ribs arranged on the inner wall of the valve core, the connecting ribs are radially distributed in the center, the left end of the spring is connected to the right end face of the connecting ribs, or a partition plate can be arranged in the cavity of the valve core to divide the cavity of the valve core into a left cavity and a right cavity, the sliding block is embedded on the partition plate, the first through hole and the second through hole are communicated with the left cavity and the right cavity respectively, one or more through holes uniformly distributed in the circumferential direction are formed in the partition plate, and the left end of the spring is connected to the right end face of the partition plate.
The sliding block, the connecting ribs and the valve core are of an integrated structure, or the sliding block, the partition plate and the valve core are of an integrated structure.
The heat-sensitive material is preferably paraffin.
The temperature control type hydraulic cooling system is characterized by further comprising a controller, a first temperature sensor and a second temperature sensor, wherein temperature detection points of the first temperature sensor and the second temperature sensor are respectively arranged at a valve inlet of the temperature control valve and an outlet of the radiator, and signal output ends of the first temperature sensor and the second temperature sensor are connected with a temperature detection signal input end of the controller.
Temperature control formula hydraulic cooling system can also set up ambient temperature sensor, ambient temperature sensor's signal output part is connected the temperature detection signal input part of controller, the controller carries out comparison and judgement to ambient temperature sensor's temperature data, and when temperature value T0 that ambient temperature sensor detected was greater than and predetermines the ambient temperature upper limit, the controller sent shutdown instruction signal.
The temperature control type hydraulic cooling system can also be provided with a display and an acousto-optic alarm device, the display signal output end of the controller is connected with the signal input end of the display, the stop instruction signal, the fault alarm signal and the normal operation prompt information are displayed on the display in the form of characters and/or images, and the input end of the acousto-optic alarm device is connected with the acousto-optic alarm signal output end of the controller.
The utility model has the beneficial effects that:
the temperature control type hydraulic cooling system can spontaneously, real-timely and continuously adjust the temperature of oil in the hydraulic system, so that the long-term, stable and proper working temperature can be provided for the hydraulic system, the temperature adjustment is timely and accurate, and the adaptability of the hydraulic system to high-temperature and low-temperature environments is enhanced.
The utility model can monitor the temperature of the oil liquid and the running state of the system in real time, can effectively find the faults of the radiator and the like in time, and can implement shutdown protection on the hydraulic system in time when the temperature regulation capacity is exceeded.
Drawings
FIG. 1 is a hydraulic schematic of the temperature controlled hydraulic cooling system of the present invention;
FIG. 2 is a schematic diagram of the control principle of the temperature controlled hydraulic cooling system of the present invention;
fig. 3 is a schematic structural view of an embodiment of the temperature control valve.
Reference numerals:
1. a first temperature sensor; 2. an oil inlet pipeline; 3. a temperature control valve; 4. a first branch oil path; 5. a second branch oil passage; 6. a heat sink; 7. a second temperature sensor; 8. an oil return line; 9. an ambient temperature sensor; 10. a controller; 11. a display; 31. a valve housing body; 32. a spring; 33. a valve core; 34. a heat-sensitive material; 35. a seal ring; 36. a small end cap; 37. a thimble; 38. a large end cap; A. a first valve outlet; B. a second valve outlet; C. a through hole; p. valve inlet; a. and (4) a sliding sleeve.
Detailed Description
The utility model discloses a temperature control type hydraulic cooling system, which is used for regulating and controlling the temperature of oil liquid of a hydraulic system and comprises a temperature control valve 3 and a radiator 6, wherein a valve inlet P of the temperature control valve is connected with an oil inlet pipeline 2, and a first valve outlet A and a second valve outlet B of the temperature control valve are respectively connected with an oil return pipeline 8 through a first branch oil way 4 and a second branch oil way 5. The radiator is arranged on the second branch oil path.
The temperature control valve comprises a valve sleeve and a temperature sensitive material 34 positioned in an inner cavity of the valve sleeve, a spring 32 and a valve core 33 in sliding fit with the valve sleeve. Two ends of the spring are respectively fixedly connected with the valve sleeve and the valve core, and the deformation direction of the spring is parallel to the sliding direction of the valve core. The thermosensitive material is influenced by the temperature change of oil in the inner cavity of the valve sleeve to generate expansion with heat and contraction with cold, the thermosensitive material and the spring jointly act to drive the valve core to slide in a reciprocating mode, and the on-off state and the opening degree of the first valve outlet and the second valve outlet are changed.
According to different relative positions of the valve core and the valve sleeve, the valve core is provided with a left working section, a middle working section and a right working section, and when the valve core is positioned in the middle working section (corresponding to the position f in figure 1), the first valve outlet is communicated with the second valve outlet and the valve inlet. The opening degree of the first valve outlet is reduced along with the increase of the temperature of the oil liquid in the valve sleeve, the opening degree of the second valve outlet is increased along with the increase of the temperature of the oil liquid in the valve sleeve, and one part of the oil liquid enters the radiator through the second valve outlet to be cooled and then flows back to the oil tank after being mixed with the other part of the oil liquid flowing out of the first valve outlet. When the valve core is in the left working section (corresponding to the position d in the figure 1), the second valve outlet is closed, the first valve outlet is communicated with the valve inlet, and oil directly flows back to the oil tank without passing through a radiator; when the valve core is in the right working section (corresponding to the g position in fig. 1), the first valve outlet is closed, the second valve outlet is communicated with the valve inlet, and all oil flows back to the oil tank after being cooled by the radiator. In a general adjusting state, the valve core is in the middle working section, when the temperature of oil entering the temperature control valve changes, the opening degrees of the first valve outlet and the second valve outlet change along with the change of the opening degrees, and the change directions are opposite, so that the proportion of the flow rate of the oil entering the radiator changes, the higher the temperature of the oil is, the higher the proportion of the oil entering the radiator is, namely, more oil is cooled, and the oil from the two branch oil passages is mixed and then maintained in a proper temperature range.
The temperature adjusting process is carried out spontaneously, so the temperature of the oil liquid in the hydraulic system can be adjusted in real time and continuously by the temperature control type hydraulic cooling system under the condition of no participation of external control, the timeliness and the accuracy are better, the implementation is simple and easy, and the adaptability of the hydraulic system to high-temperature and low-temperature environments is enhanced.
Further, the temperature control valve further includes a slider and a thimble 37. The valve sleeve and the sliding block are both hollow shells, the left end of the valve sleeve is closed, and the valve inlet P is arranged at the right end of the valve sleeve. The first valve outlet A and the second valve outlet B are arranged on the side wall of the valve sleeve at intervals from left to right. The valve core is a thin shell-shaped part with an outer cylindrical surface attached to the side wall of the valve sleeve. The valve core is provided with a first through hole and a second through hole at left and right intervals, and the first through hole and the second through hole are both communicated with the inner cavity of the valve sleeve. The first through hole and the second through hole respectively correspond to the first valve outlet and the second valve outlet, the position of the first through hole relative to the first valve outlet determines the on-off and the opening size of the first valve outlet, and the position of the second through hole relative to the second valve outlet determines the channel and the opening size of the second valve outlet. The fluid medium enters the valve housing from the valve inlet and can either exit the valve housing via the first through-hole and the first valve outlet or exit the valve housing via the second through-hole and the second valve outlet.
The slide block is positioned in the inner cavity of the valve sleeve and is fixedly connected with the valve core. The sliding block slides left and right to drive the valve core to synchronously slide left and right, so that the on-off of the first valve outlet and the second valve outlet is switched or the opening of the first valve outlet and the second valve outlet is adjusted.
The left end of the thimble is fixed at the left end of the valve sleeve, the right end of the thimble is inserted into the sliding block and is in sliding fit with the sliding block, and a seal is arranged between the sliding block and the thimble. In the embodiment shown in the figures, the sealing groove is provided in the small end cap, in which sealing ring 35 is provided. The closed cavity of the slider is completely filled with the heat sensitive material 34 except for a part of the space occupied by the ejector pins. The spring is located in the inner cavity of the valve sleeve, the right end of the spring is fixed to the right end of the valve sleeve, and the left end of the spring is fixedly connected with the sliding block. The whole sliding block is immersed in a fluid medium, the thermosensitive material expands with heat and contracts with cold along with the change of the temperature of the fluid medium, the volume of an inner cavity of the sliding block occupied by the thermosensitive material is correspondingly changed, and the sliding block slides left and right under the combined action of the spring and the thermosensitive material. The sliding block, the thimble and the spring are preferably positioned in the center of the valve sleeve in the direction perpendicular to the side wall of the valve sleeve, so that the sliding block slides smoothly left and right.
When the valve core is in the middle working section, the first through hole is communicated with the first valve outlet, the second through hole is communicated with the second valve outlet, the first valve outlet and the second valve outlet are both in a unblocked state, and fluid media can flow out of the first valve outlet and the second valve outlet. When the temperature of the fluid medium entering the valve sleeve is reduced, the thermosensitive material shrinks when being cooled, the sliding block moves left under the pushing of the spring, the opening degree of the first valve outlet is increased, the opening degree of the second valve outlet is reduced, conversely, when the temperature of the fluid medium entering the valve sleeve is increased, the thermosensitive material expands when being heated, overcomes the spring force to push the sliding block to move right, the opening degree of the first valve outlet is reduced, the opening degree of the second valve outlet is increased, namely, the temperature control valve can respond in real time according to the temperature of the fluid medium, and the opening degree of the valve outlet is adjusted.
When the temperature of the fluid medium is low to a certain degree, the slide block moves leftwards continuously, the opening degree of the second valve outlet is reduced continuously until the second valve outlet is closed, the valve core enters a left working section at the moment, the valve core seals the second valve outlet, the first through hole is communicated with the first valve outlet, the first valve outlet is unblocked, and the fluid medium completely flows out of the first valve outlet. When the temperature of the fluid medium entering the valve sleeve is high to a certain degree, the sliding block continuously moves to the right, the opening degree of the first valve outlet is continuously reduced until the first valve outlet is closed, the valve core enters the right working section at the moment, the valve core seals the first valve outlet, the second through hole is communicated with the second valve outlet, the second valve outlet is unblocked, and the fluid medium completely flows out of the second valve outlet.
The temperature control valve can be further structurally optimized from one or more of the following aspects:
1. the valve sleeve may include a valve sleeve body 31 having a cylindrical structure with an open left end, and a large end cap 38 fixed to the left end of the valve sleeve body and closing the open end of the valve sleeve. And structural components such as the valve core, the sliding block, the spring and the like are disassembled and assembled from the left end of the valve sleeve body. The large end cover can be positioned at the left end of the valve sleeve body through a spigot structure.
2. The sliding block can comprise a sliding sleeve a and a small end cover 36, the sliding sleeve is of a cylindrical structure with an open left end, the small end cover is fixed at the left end of the sliding sleeve and seals the opening of the sliding sleeve, and the small end cover is in sliding fit with the ejector pin and is sealed. A sealing groove is preferably provided in the small end cap, in which sealing ring 35 is mounted. The small end cover can be positioned at the left end of the sliding sleeve through a seam allowance structure.
3. The valve core is preferably a rotational symmetry structure with a symmetry center line extending left and right, and the symmetry center line is superposed with the central axis of the spring.
Further, the valve core can be a tubular part, and the sliding block is located in the pipe cavity of the valve core. The fixed connection mode of the slide block and the valve core can adopt any one of the following modes:
(1) the valve core can be fixedly connected with the sliding block through a plurality of connecting ribs arranged on the inner wall of the valve core, and the left end of the spring is connected to the right end face of the connecting ribs. The connecting ribs are preferably distributed in a central radial shape.
In this case, the slider, the connecting rib, and the valve element may be of an integral structure.
(2) The tube cavity of the valve core can be internally provided with a clapboard which divides the tube cavity of the valve core into a left tube cavity and a right tube cavity. The slider is inlayed on the baffle, first through-hole and second through-hole communicate with each other with left side lumen and right side lumen respectively, the through-hole C that is equipped with one or more circumference equipartitions on the baffle is used for communicateing left and right side lumen, the left end of spring is connected on the right-hand member face of baffle.
In this case, the slider, the partition plate, and the valve body may be of an integral structure.
The combination of the valve core and the connecting ribs and the combination of the valve core and the partition plate also play a role of a spring seat.
4. The valve core can also be a part formed by transversely connecting a plurality of sheet-shaped structures.
5. The heat-sensitive material is preferably paraffin.
6. The left end part of the thimble is of a large flat plate structure so as to disperse the pressure of the thimble on the left end of the valve sleeve.
7. The valve housing may also be a rotationally symmetric structure with a symmetric center line extending left and right, such as a cylindrical hollow housing or a hollow housing with a rectangular cross-section.
8. The first through hole and the second through hole can be provided with a plurality of pairs, and each pair is dispersedly arranged on different positions of the valve core in the circumferential direction. Thus, strict angular positioning between the valve sleeve and the valve core is not required, and the installation is simplified.
The temperature-controlled hydraulic cooling system can also be provided with a controller 10, a first temperature sensor 1 and a second temperature sensor 7, wherein temperature detection points of the first temperature sensor and the second temperature sensor are respectively arranged at a valve inlet of the temperature control valve and an outlet of the radiator. The signal output ends of the first temperature sensor and the second temperature sensor are connected with the temperature detection signal input end of the controller, the temperature data monitored by the first temperature sensor and the second temperature sensor are transmitted to the controller in real time, and the controller compares and calculates the temperature data detected by the first temperature sensor and the second temperature sensor and sends corresponding instructions or information.
And T1 and T2 represent temperature values detected by the first temperature sensor and the second temperature sensor respectively, and when T1 is greater than or equal to a set high threshold value or T1 is less than or equal to a set low threshold value, the temperature value indicates that the current oil temperature is beyond the temperature regulation capacity range of the temperature-controlled hydraulic cooling system, the hydraulic system cannot be ensured to work in an appropriate temperature range, and therefore the controller sends a shutdown command signal to control the hydraulic system to be shut down. When the T1 is smaller than a set high threshold and larger than a set low threshold, if the T1-T2 is smaller than a set value delta T, the controller judges that the radiator fails, so that oil entering the radiator is not cooled normally, the controller sends out a failure alarm signal, and if the T1-T2 is not smaller than the set value delta T, the temperature-controlled cooling system operates normally. Through setting up first, second temperature sensor and carrying out above-mentioned comparison and judge, can real-time supervision system's fluid temperature and control by temperature change formula hydraulic cooling system's state, including can in time discover the radiator failure state, improve the reliability of system.
When the structure of the temperature control valve (including the type selection of the spring and the material selection of the thermosensitive material) is determined, the temperature range in which the valve can implement automatic adjustment is also determined, the extreme values at the two ends of the temperature range are the set high threshold value and the set low threshold value, and the temperature range can be determined according to the working temperature range required by the hydraulic system. The set value Δ T may be determined with reference to the actual cooling capacity of the radiator.
The temperature control type hydraulic cooling system can also be provided with an ambient temperature sensor 9, and the signal output end of the ambient temperature sensor is connected with the temperature detection signal input end of the controller. And T0 represents the temperature value detected by the ambient temperature sensor, the controller compares and judges the T0, and when the T0 is greater than the upper limit of the preset ambient temperature, the temperature is over high and exceeds the cooling capacity of the temperature-controlled hydraulic cooling system, so that the controller sends a shutdown command signal to control the hydraulic system to be shut down. Typically, the upper predetermined ambient temperature limit is significantly higher than the set high threshold. The above determination is performed by using the ambient temperature data, which generally enables the hydraulic system to be stopped in advance, thereby reducing the operation time of low efficiency and poor effect of the radiator under the condition of overhigh ambient temperature.
The temperature control type hydraulic cooling system can also be provided with a display 11, the display signal output end of the controller is connected with the signal input end of the display, and the stop instruction signal and the fault alarm signal are displayed on the display in the form of characters and/or images. And when the controller sends out a stop command signal and a fault alarm signal, displaying the state information of normal operation of the temperature control type hydraulic cooling system on the display by default.
The temperature control type hydraulic cooling system can also be provided with an acousto-optic alarm device, and the input end of the acousto-optic alarm device is connected with the acousto-optic alarm signal output end of the controller. The controller can control the acousto-optic alarm device to send out corresponding acousto-optic signals when sending out a shutdown instruction signal and a fault alarm signal.
In addition, when the hydraulic system works in a low-temperature environment, the temperature of the mixed oil can be quickly increased by arranging the heating device on the first branch oil way.
The left and right are relative concepts, and do not limit the absolute orientation in order to express the relative positional relationship of the related structures.
Claims (10)
1. The utility model provides a control by temperature change formula hydraulic cooling system which characterized in that: the temperature control valve comprises a valve sleeve, a thermosensitive material, a spring and a valve core, wherein the thermosensitive material, the spring and the valve core are positioned in an inner cavity of the valve sleeve, the valve core is in sliding fit with the valve sleeve, two ends of the spring are respectively and fixedly connected with the valve sleeve and the valve core, the deformation direction of the spring is parallel to the sliding direction of the valve core, the thermosensitive material generates thermal expansion and cold contraction deformation under the influence of the temperature change of oil in the inner cavity of the valve sleeve, the thermosensitive material and the spring jointly act to drive the valve core to slide in a reciprocating manner to change the on-off state and the opening degree of the first valve outlet and the second valve outlet, the valve core is provided with a left working section, a middle working section and a right working section, and when the valve core is positioned in the middle working section, the first valve outlet is communicated with the second valve outlet and the valve inlet, the opening degree of the first valve outlet is reduced along with the increase of the temperature of oil liquid in the valve sleeve, the opening degree of the second valve outlet is increased along with the increase of the temperature of the oil liquid in the valve sleeve, when the valve core is in a left working section, the second valve outlet is closed, the first valve outlet is communicated with the valve inlet, and when the valve core is in a right working section, the first valve outlet is closed, and the second valve outlet is communicated with the valve inlet.
2. A temperature controlled hydraulic cooling system as claimed in claim 1, wherein: the temperature control valve also comprises a sliding block and an ejector pin, the valve sleeve and the sliding block are hollow shells, the left end of the valve sleeve is closed, the valve inlet is arranged at the right end of the valve sleeve, the first valve outlet and the second valve outlet are arranged on the side wall of the valve sleeve at intervals from left to right, the valve core is a thin shell-shaped part with an outer cylindrical surface attached to the side wall of the valve sleeve, a first through hole and a second through hole are arranged on the valve core at intervals from left to right, the first through hole and the second through hole are both communicated with the inner cavity of the valve sleeve, the sliding block is positioned in the inner cavity of the valve sleeve and fixedly connected with the valve core, the left end of the ejector pin is fixed at the left end of the valve sleeve, the right end of the ejector pin is inserted into the sliding block and is in sliding fit with the sliding block, a seal is arranged between the sliding block and the ejector pin, the part of the space occupied by the thermosensitive material in the closed inner cavity of the sliding block is completely filled by the thermosensitive material, and the spring is positioned in the inner cavity of the valve sleeve, the right end of the spring is fixed at the right end of the valve sleeve, the left end of the spring is fixedly connected with the sliding block, the thimble and the spring are positioned in the center of the valve sleeve in the direction vertical to the side wall of the valve sleeve, when the valve core is positioned in the middle working section, the first through hole is communicated with the outlet of the first valve, and the second through hole is communicated with the outlet of the second valve; when the valve core is positioned in the left working section, the valve core seals the second valve outlet, and the first through hole is communicated with the first valve outlet; when the valve core is in the right working section, the valve core seals the first valve outlet, and the second through hole is communicated with the second valve outlet.
3. A temperature controlled hydraulic cooling system as claimed in claim 2, wherein: the valve barrel comprises a valve barrel body and a large end cover, the valve barrel body is of a cylindrical structure with an open left end, the large end cover is fixed at the left end of the valve barrel body and seals the opening of the valve barrel, the sliding block comprises a sliding sleeve and a small end cover, the sliding sleeve is of a cylindrical structure with an open left end, the small end cover is fixed at the left end of the sliding sleeve and seals the opening of the sliding sleeve, a sealing groove is formed in the small end cover, a sealing ring is arranged in the sealing groove, and the small end cover is in sliding fit with the ejector pin and passes through the sealing ring to be sealed.
4. A temperature controlled hydraulic cooling system as claimed in claim 2, wherein: the valve core is a tubular part, and the sliding block is positioned in a pipe cavity of the valve core.
5. A temperature controlled hydraulic cooling system as claimed in claim 2, wherein: the valve core is fixedly connected with the sliding block through a plurality of connecting ribs arranged on the inner wall of the valve core, the connecting ribs are radially distributed in the center, the left end of the spring is connected to the right end face of the connecting ribs, or a partition plate is arranged in the cavity of the valve core and divides the cavity of the valve core into a left cavity and a right cavity, the sliding block is embedded on the partition plate, the first through hole and the second through hole are communicated with the left cavity and the right cavity respectively, one or more through holes uniformly distributed in the circumferential direction are formed in the partition plate, and the left end of the spring is connected to the right end face of the partition plate.
6. A temperature controlled hydraulic cooling system as claimed in claim 5, wherein: the sliding block, the connecting ribs and the valve core are of an integrated structure, or the sliding block, the partition plate and the valve core are of an integrated structure.
7. A temperature controlled hydraulic cooling system as claimed in claim 2, wherein: the heat-sensitive material adopts paraffin.
8. A temperature controlled hydraulic cooling system as claimed in claim 1, 2, 3, 4, 5, 6 or 7, wherein: the temperature control valve is characterized by further comprising a controller, a first temperature sensor and a second temperature sensor, temperature detection points of the first temperature sensor and the second temperature sensor are respectively arranged at a valve inlet of the temperature control valve and an outlet of the radiator, and signal output ends of the first temperature sensor and the second temperature sensor are connected with a temperature detection signal input end of the controller.
9. A temperature controlled hydraulic cooling system as recited in claim 8 wherein: an environment temperature sensor is further arranged, and a signal output end of the environment temperature sensor is connected with a temperature detection signal input end of the controller.
10. A temperature controlled hydraulic cooling system as claimed in claim 9, wherein: the system is characterized by further comprising a display and an acousto-optic alarm device, wherein the display signal output end of the controller is connected with the signal input end of the display, a stop instruction signal, a fault alarm signal and normal operation prompt information are displayed on the display in a text and/or image mode, and the input end of the acousto-optic alarm device is connected with the acousto-optic alarm signal output end of the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120141668.3U CN215333762U (en) | 2021-01-19 | 2021-01-19 | Temperature control type hydraulic cooling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120141668.3U CN215333762U (en) | 2021-01-19 | 2021-01-19 | Temperature control type hydraulic cooling system |
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| CN215333762U true CN215333762U (en) | 2021-12-28 |
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| CN202120141668.3U Active CN215333762U (en) | 2021-01-19 | 2021-01-19 | Temperature control type hydraulic cooling system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112762060A (en) * | 2021-01-19 | 2021-05-07 | 天地上海采掘装备科技有限公司 | Temperature control type hydraulic cooling system |
| CN115324985A (en) * | 2022-08-12 | 2022-11-11 | 涌镇液压机械（上海）有限公司 | Automatic regulating heat exchanger |
-
2021
- 2021-01-19 CN CN202120141668.3U patent/CN215333762U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112762060A (en) * | 2021-01-19 | 2021-05-07 | 天地上海采掘装备科技有限公司 | Temperature control type hydraulic cooling system |
| CN115324985A (en) * | 2022-08-12 | 2022-11-11 | 涌镇液压机械（上海）有限公司 | Automatic regulating heat exchanger |
| CN115324985B (en) * | 2022-08-12 | 2024-05-24 | 涌镇液压机械（上海）有限公司 | Automatic adjusting heat exchanger |
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